package com.itheima.reggie.controller;

import com.baomidou.mybatisplus.core.conditions.query.LambdaQueryWrapper;
import com.baomidou.mybatisplus.extension.plugins.pagination.Page;
import com.itheima.reggie.common.R;
import com.itheima.reggie.dto.SetmealDto;
import com.itheima.reggie.entity.Category;
import com.itheima.reggie.entity.Setmeal;
import com.itheima.reggie.service.CategoryService;
import com.itheima.reggie.service.SetmealDishService;
import com.itheima.reggie.service.SetmealService;
import lombok.extern.slf4j.Slf4j;
import org.apache.commons.lang.StringUtils;
import org.springframework.beans.BeanUtils;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.cache.annotation.CacheEvict;
import org.springframework.cache.annotation.Cacheable;
import org.springframework.web.bind.annotation.*;

import java.util.List;
import java.util.stream.Collectors;

@Slf4j
@RestController
@RequestMapping("/setmeal")
public class SetmealController {

    @Autowired
    private SetmealDishService setmealDishService;
    @Autowired
    private SetmealService setmealService;
    @Autowired
    private CategoryService categoryService;

    /**
     * 新增套餐
     *
     * @param setmealDto
     * @return
     */
    @PostMapping
    @CacheEvict(value = "setmealCache",allEntries = true) //删除所有套餐的缓存数据
    public R<String> save(@RequestBody SetmealDto setmealDto) {
        log.info("套餐信息：{}",setmealDto);
        setmealService.saveWithDish(setmealDto);
        return R.success("新增套餐成功");
    }

    @GetMapping("/page")
    public R<Page> page(int page,int pageSize,String name) {
        Page<Setmeal> setmealPage = new Page(page, pageSize);
        Page<SetmealDto> setmealDtoPage = new Page<>();

        LambdaQueryWrapper<Setmeal> queryWrapper = new LambdaQueryWrapper();
        queryWrapper.like(StringUtils.isNotEmpty(name), Setmeal::getName, name);
        queryWrapper.orderByDesc(Setmeal::getUpdateTime);

        setmealService.page(setmealPage, queryWrapper);
        BeanUtils.copyProperties(setmealPage, setmealDtoPage,"records" );

        //records不能直接复制给，存在不同属性值，不管排不排除都无法直接拷贝过去

        setmealDtoPage.setRecords(setmealPage.getRecords().stream().map((item) -> {
            SetmealDto setmealDto = new SetmealDto();
            BeanUtils.copyProperties(item, setmealDto);

            Long categoryId = item.getCategoryId();
            Category category = categoryService.getById(categoryId);
            if (category != null) {
                String categoryName = category.getName();
                setmealDto.setCategoryName(categoryName);
            }
            return setmealDto;
        }).collect(Collectors.toList()));

        return R.success(setmealDtoPage);
    }

    @DeleteMapping
    @CacheEvict(value = "setmealCache",allEntries = true)   //删除所有套餐的缓存数据
    public  R<String>  delete(@RequestParam List<Long> ids){

        setmealService.removeWithDish(ids);
        return R.success("套餐删除成功");

    }
    /**
     * 根据条件查询套餐数据
     * @param setmeal
     * @return
     */
    @GetMapping("/list")
    @Cacheable(value="setmealCache",key = "#setmeal.categoryId+'_'+#setmeal.status")
    public R<List<Setmeal>> list(Setmeal setmeal){
        LambdaQueryWrapper<Setmeal> queryWrapper = new LambdaQueryWrapper<>();
        queryWrapper.eq(setmeal.getCategoryId() != null,Setmeal::getCategoryId,setmeal.getCategoryId());
        queryWrapper.eq(setmeal.getStatus() != null,Setmeal::getStatus,setmeal.getStatus());
        queryWrapper.orderByDesc(Setmeal::getUpdateTime);

        List<Setmeal> list = setmealService.list(queryWrapper);
        return R.success(list);
    }
}
